GB2116045A - Piezoelectric transducers having a curved tubular shaft for disintegrating calculi - Google Patents
Piezoelectric transducers having a curved tubular shaft for disintegrating calculi Download PDFInfo
- Publication number
- GB2116045A GB2116045A GB08303025A GB8303025A GB2116045A GB 2116045 A GB2116045 A GB 2116045A GB 08303025 A GB08303025 A GB 08303025A GB 8303025 A GB8303025 A GB 8303025A GB 2116045 A GB2116045 A GB 2116045A
- Authority
- GB
- United Kingdom
- Prior art keywords
- passage
- bolt
- transducer
- flushing
- shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000011010 flushing procedure Methods 0.000 claims description 14
- 230000010355 oscillation Effects 0.000 claims description 14
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 208000000913 Kidney Calculi Diseases 0.000 claims description 3
- 206010029148 Nephrolithiasis Diseases 0.000 claims description 3
- 230000013011 mating Effects 0.000 claims description 3
- 210000003708 urethra Anatomy 0.000 claims description 2
- 210000003932 urinary bladder Anatomy 0.000 claims description 2
- 208000010392 Bone Fractures Diseases 0.000 description 3
- 206010017076 Fracture Diseases 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000002939 deleterious effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B17/22004—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves
- A61B17/22012—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves in direct contact with, or very close to, the obstruction or concrement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
- B06B1/0607—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements
- B06B1/0611—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements in a pile
- B06B1/0618—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements in a pile of piezo- and non-piezoelectric elements, e.g. 'Tonpilz'
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B17/22004—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves
- A61B17/22012—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves in direct contact with, or very close to, the obstruction or concrement
- A61B2017/22014—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves in direct contact with, or very close to, the obstruction or concrement the ultrasound transducer being outside patient's body; with an ultrasound transmission member; with a wave guide; with a vibrated guide wire
- A61B2017/22015—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves in direct contact with, or very close to, the obstruction or concrement the ultrasound transducer being outside patient's body; with an ultrasound transmission member; with a wave guide; with a vibrated guide wire with details of the transmission member
- A61B2017/22018—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves in direct contact with, or very close to, the obstruction or concrement the ultrasound transducer being outside patient's body; with an ultrasound transmission member; with a wave guide; with a vibrated guide wire with details of the transmission member segmented along its length
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2217/00—General characteristics of surgical instruments
- A61B2217/002—Auxiliary appliance
- A61B2217/005—Auxiliary appliance with suction drainage system
Description
1
GB 2 116 045 A
1
SPECIFICATION
Piezoelectric transducers having a curved tubular shaft
5
The present invention relates to piezoelectric transducers for generating ultrasonic oscillations for disintegrating bladder, urethra and kidney stones, of the kind which comprise two piezoelectric discs 10 clamped between two metal elements by means of a tubular bolt utilisable as a flushing passage, and whereof the metal element at the distal side may have a curved tubular shaft transmitting the ultrasonic oscillations and joined to the flushing passage of 15 the bolt screwed to it via an end fitting provided with a passage.
In known transducers of the kind referred to above, the shaft transmitting the ultrasonic oscillations, which has a curvilinear portion and acts as a 20 flushing passage, had a comparatively small internal diameter along the area of curvature, and the flushing passage extending through the transducer comprised a rigid duct pipe connected to the transmitting element on the one hand, and to a flushing 25 pipe on the other hand. It was discovered that the shaft used as a transmitter element tends to fracture in the area of the curvilinear portion and in the transition to the end fitting due to the longitudinal and transverse effects of the ultrasonic oscillations 30 caused by the curvature, and that the oscillation conditions and in particular the efficiency of power transmission are effected deleteriously by the rigid pipe passing through the transducer. Moreover, the particles of material produced by disintegration of 35 stones and intended to be extracted, rapidly settled, primarily within the passage extending through the transducer, so that fluid draining was no longer assured.
Consequently, it is an object of the invention to 40 reduce or eliminate the tendency of the tubular shaft transmitting the ultrasonic oscillations to the stone which is to be broken up, to fracture in the area of the curvature and in draining the flushing fluid together with the matter to be removed in unobjectionable 45 manner, without obstruction by the sonic oscillator.
In the case of a transducer as hereinbefore referred to, this problem is resolved in that the proximal part of the shaft has an enlarged internal diameter as far as beyond the area of its curvature and continues 50 in cylindrically constricted form up to the distal shaft extremity, and in that the plastics material tube traversing the bolt is connected at one side to the end fitting by a clamping joint and at the other and proximal side of the transducer to a flushing pipe via 55 another clamping joint.
Due to the increase in the internal diameter of the proximal shaft section incorporating the area of curvature, this area will incur lesser strain from the oscillation components in the transverse direction, 60 so that the risk of fracture in this area is reduced decisively. Because the flushing passage extending through the transducer consists of a plastics material tube, the oscillations engendered may be absorbed resiliently and deleterious actions remain ineffective 65 as regards the oscillation conditions, so that the power as a whole may be transmitted to the stone. Clogging of the flushing passage is moreover substantially avoided.
In order that the invention may be more clearly 70 understood reference will now be made to the accompanying drawings illustrating one embodiment thereof by way of example and in which:-
Figure 1 shows an axial cross-section through a piezoelectric transducer comprising the shaft trans-75 mitting the ultrasonic oscillations, and the flushing passage connected proximally to the shaft and extending through the transducer, and
Figure 2 shows a side view of the shaft transmitting the ultrasonic oscillations and intended to be 80 connected to the transducer according to Figure 1, and forming a continuation of that Figure.
Referring now to the drawings the piezoelectric transducer per se, intended to generate ultrasonic oscillations for disintegrating kidney stones or the 85 like, is known perse. In the casing 1, two piezoelectric discs 2 are clamped between the metal elements 3 and 4 by means of a bolt 5 provided with an axial passage, which is screwed with a screwthread 5a into the metal element 4 at the distal side. Into this 90 metal element 4 is also screwed an end fitting 6 having an axial passage, wherein is connected a brazed-in shaft joined to the passage and provided with a curvilinear portion 7a, the internal diameter of which is enlarged within the section of the end fitting 95 6 and as far as beyond the curved portion 7a and thereafter continues in cylindrically constricted manner up to the distal extremity.
The passage of the bolt 5 is traversed by a plastics material tube 8, for example a material known under 100 the trade mark "Teflon", the distal extremity of which is clamped at 9 between a hollow cone and a mating cone of the end fitting 6screwable into the former, and the proximal extremity of which, led out of the casing 1, is clamped at 10 within a coupling 105 element also comprising a hollow cone and mating cone, and is connected to a flushing pipe 11.
Claims (2)
110 1. A piezoelectric transducer for generating ultrasonic oscillations for disintegrating bladder, urethra and kidney stones, of the kind which comprises two piezoelectric discs clamped between two metal elements by means of a tubular bolt utilisable as a 115 flushing passage, and whereof the metal element at the distal side may have a curved tubular shaft transmitting the ultrasonic oscillations and joined to the flushing passage of the bolt screwed to it via an end fitting provided with a passage, wherein the 120 proximal part of said shaft has an enlarged internal diameter as far as the area of its curvature and continues from the latter to the distal extremity whilst constricted cylindrically, and wherein the bolt is traversed by a plastics material tube which is 125 joined at one end to the end fitting via a clamping joint and is connected at the other end at the proximal side of the transducer to a flushing pipe via another clamping joint.
2. A piezoelectric transducer as claimed in claim 130 1, wherein the clamping joints each comprise a
2
GB 2 116 045 A
2
hollow cone and a mating cone receiving a tube extremity between them and secured by being screwed together.
Printed for Her Majesty's Stationery Office, by Croydon Printing Company Limited, Croydon, Surrey, 1983.
Published by The Patent Office, 25 Southampton Buildings, London, WC2A1 AY, from which copies may be obtained.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE8205955 | 1982-03-04 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8303025D0 GB8303025D0 (en) | 1983-03-09 |
| GB2116045A true GB2116045A (en) | 1983-09-21 |
| GB2116045B GB2116045B (en) | 1985-01-23 |
Family
ID=6737643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB08303025A Expired GB2116045B (en) | 1982-03-04 | 1983-02-03 | Piezoelectric transducers having a curved tubular shaft for disintegrating calculi |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US4561438A (en) |
| FR (1) | FR2522492A1 (en) |
| GB (1) | GB2116045B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61145512U (en) * | 1985-02-27 | 1986-09-08 | ||
| JPS61145511U (en) * | 1985-02-27 | 1986-09-08 | ||
| JPS61145513U (en) * | 1985-02-27 | 1986-09-08 | ||
| FR2582506A1 (en) * | 1985-06-04 | 1986-12-05 | Nippon Infrared Ind | ULTRASONIC DEVICE FOR SURGICAL OPERATIONS |
| JPS62167556A (en) * | 1986-01-18 | 1987-07-23 | 住友ベークライト株式会社 | Ultrasonic operation apparatus |
| EP0541249A2 (en) * | 1991-10-08 | 1993-05-12 | Surgical Design Corporation | Ultrasonic handpiece |
| EP0582766A1 (en) * | 1992-08-13 | 1994-02-16 | Ministero Dell' Universita' E Della Ricerca Scientifica E Tecnologica | Ultrasonic recanalization system and transducer therefor |
| WO1995009571A1 (en) * | 1993-10-04 | 1995-04-13 | Baxter International Inc. | Ultrasonic guidewire |
Families Citing this family (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4660573A (en) * | 1985-05-08 | 1987-04-28 | Fibra-Sonics, Inc. | Ultrasonic lithotriptor probe |
| DE3520133A1 (en) * | 1985-06-05 | 1986-12-11 | Richard Wolf Gmbh, 7134 Knittlingen | INSTRUMENT FOR ULTRASONIC LITHOTRIPSY |
| US4861332A (en) * | 1986-04-14 | 1989-08-29 | Ultramed Corporation | Ultrasonic probe |
| US4808153A (en) * | 1986-11-17 | 1989-02-28 | Ultramed Corporation | Device for removing plaque from arteries |
| US4838853A (en) * | 1987-02-05 | 1989-06-13 | Interventional Technologies Inc. | Apparatus for trimming meniscus |
| SE458821B (en) * | 1987-09-04 | 1989-05-16 | Swedemed Ab | ULTRASOUND KNIFE |
| FR2653040B1 (en) * | 1989-10-18 | 1994-05-13 | Aerospatiale Ste Nationale Indle | ULTRASONIC PERCUSSION DEVICE. |
| US5069664A (en) * | 1990-01-25 | 1991-12-03 | Inter Therapy, Inc. | Intravascular ultrasonic angioplasty probe |
| DE69024805T2 (en) * | 1990-05-17 | 1996-05-23 | Sumitomo Bakelite Co | SURGICAL INSTRUMENT |
| US5222937A (en) * | 1991-01-11 | 1993-06-29 | Olympus Optical Co., Ltd. | Ultrasonic treatment apparatus |
| EP0633798B1 (en) | 1992-03-31 | 2003-05-07 | Boston Scientific Corporation | Vascular filter |
| US7101392B2 (en) | 1992-03-31 | 2006-09-05 | Boston Scientific Corporation | Tubular medical endoprostheses |
| US6497709B1 (en) | 1992-03-31 | 2002-12-24 | Boston Scientific Corporation | Metal medical device |
| US5630840A (en) | 1993-01-19 | 1997-05-20 | Schneider (Usa) Inc | Clad composite stent |
| US5653724A (en) * | 1993-08-18 | 1997-08-05 | Imonti; Maurice M. | Angled phacoemulsifier tip |
| US5417654A (en) * | 1994-02-02 | 1995-05-23 | Alcon Laboratories, Inc. | Elongated curved cavitation-generating tip for disintegrating tissue |
| US6752815B2 (en) * | 2001-01-31 | 2004-06-22 | Ethicon Endo-Surgery, Inc. | Method and waveguides for changing the direction of longitudinal vibrations |
| US20030208218A1 (en) * | 2002-05-02 | 2003-11-06 | Kenneth E. Kadziauskas | Ultrasonic needle cover |
| CN101467909B (en) * | 2007-12-28 | 2011-02-02 | 北京奥麦特科技有限公司 | Transducer for ultrasound lithotripter in vivo |
| WO2010021951A2 (en) | 2008-08-18 | 2010-02-25 | The Brigham And Women's Hospital, Inc. | Integrated surgical sampling probe |
| US8623040B2 (en) | 2009-07-01 | 2014-01-07 | Alcon Research, Ltd. | Phacoemulsification hook tip |
| US10258505B2 (en) | 2010-09-17 | 2019-04-16 | Alcon Research, Ltd. | Balanced phacoemulsification tip |
| US20150328047A1 (en) * | 2014-05-19 | 2015-11-19 | Francis Y. Falck, Jr. | Cataract Removal Tool |
| JP6940485B2 (en) | 2015-08-28 | 2021-09-29 | クリシー メディカル システムズ インコーポレイテッド | Flow sensor system with absorber |
| ES2781205T3 (en) | 2015-08-28 | 2020-08-31 | Crisi Medical Systems Inc | Flow sensor system including transmissive connection |
| CN113041446B (en) | 2015-08-28 | 2023-07-18 | 克里斯医疗系统股份有限公司 | Flow sensor system including spring contacts |
| EP3471798B1 (en) | 2016-06-17 | 2021-12-08 | Becton, Dickinson and Company | Method and apparatus for wetting internal fluid path surfaces of a fluid port to increase ultrasonic signal transmission |
| US11385086B2 (en) | 2018-07-06 | 2022-07-12 | Becton, Dickinson And Company | Flow sensor and method for adjusting fluid flow measurement |
| US11927467B2 (en) | 2020-01-22 | 2024-03-12 | Becton, Dickinson And Company | Flow sensor sub-assembly in an ultrasonic flow meter including an absorber sleeve engaging a coupler and a flow tube |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US28752A (en) * | 1860-06-19 | Clothes-wringer | ||
| US2863678A (en) * | 1955-12-27 | 1958-12-09 | Gordon Benjamin | Coupling for double-flared tubes |
| US2878809A (en) * | 1958-01-23 | 1959-03-24 | Richards Mfg Company | Surgical drill attachment |
| US3433226A (en) * | 1965-07-21 | 1969-03-18 | Aeroprojects Inc | Vibratory catheterization apparatus and method of using |
| US3352303A (en) * | 1965-07-28 | 1967-11-14 | Lawrence J Delaney | Method for blood clot lysis |
| US3518766A (en) * | 1969-01-30 | 1970-07-07 | Emanuel Burt | Piezoelectric cleaning device with removable workpiece |
| US3693613A (en) * | 1970-12-09 | 1972-09-26 | Cavitron Corp | Surgical handpiece and flow control system for use therewith |
| US3956826A (en) * | 1974-03-19 | 1976-05-18 | Cavitron Corporation | Ultrasonic device and method |
| US4169984A (en) * | 1976-11-30 | 1979-10-02 | Contract Systems Associates, Inc. | Ultrasonic probe |
| US4168447A (en) * | 1977-02-25 | 1979-09-18 | Bussiere Ronald L | Prestressed cylindrical piezoelectric ultrasonic scaler |
| GB2032221A (en) * | 1978-10-23 | 1980-04-30 | Keeler Instr Ltd | Hand Held Ultrasonic Transducer Instrument |
| US4526571A (en) * | 1982-10-15 | 1985-07-02 | Cooper Lasersonics, Inc. | Curved ultrasonic surgical aspirator |
-
1983
- 1983-02-03 GB GB08303025A patent/GB2116045B/en not_active Expired
- 1983-03-03 FR FR8303527A patent/FR2522492A1/en active Granted
-
1984
- 1984-12-17 US US06/682,474 patent/US4561438A/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH025768Y2 (en) * | 1985-02-27 | 1990-02-13 | ||
| JPS61145511U (en) * | 1985-02-27 | 1986-09-08 | ||
| JPS61145513U (en) * | 1985-02-27 | 1986-09-08 | ||
| JPS61145512U (en) * | 1985-02-27 | 1986-09-08 | ||
| JPH025765Y2 (en) * | 1985-02-27 | 1990-02-13 | ||
| JPH025766Y2 (en) * | 1985-02-27 | 1990-02-13 | ||
| FR2582506A1 (en) * | 1985-06-04 | 1986-12-05 | Nippon Infrared Ind | ULTRASONIC DEVICE FOR SURGICAL OPERATIONS |
| JPS62167556A (en) * | 1986-01-18 | 1987-07-23 | 住友ベークライト株式会社 | Ultrasonic operation apparatus |
| JPH0414580B2 (en) * | 1986-01-18 | 1992-03-13 | Sumitomo Bakelite Co | |
| EP0541249A2 (en) * | 1991-10-08 | 1993-05-12 | Surgical Design Corporation | Ultrasonic handpiece |
| EP0541249A3 (en) * | 1991-10-08 | 1993-07-14 | Surgical Design Corporation | Ultrasonic handpiece |
| US5242385A (en) * | 1991-10-08 | 1993-09-07 | Surgical Design Corporation | Ultrasonic handpiece |
| EP0582766A1 (en) * | 1992-08-13 | 1994-02-16 | Ministero Dell' Universita' E Della Ricerca Scientifica E Tecnologica | Ultrasonic recanalization system and transducer therefor |
| WO1995009571A1 (en) * | 1993-10-04 | 1995-04-13 | Baxter International Inc. | Ultrasonic guidewire |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2116045B (en) | 1985-01-23 |
| GB8303025D0 (en) | 1983-03-09 |
| FR2522492A1 (en) | 1983-09-09 |
| US4561438A (en) | 1985-12-31 |
| FR2522492B3 (en) | 1985-03-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |